Keyphrases
- structured data
- semi structured
- semi structured data
- information extraction
- free text
- structured information
- unstructured data
- xml documents
- text data
- textual data
- keyword search
- relational data
- data sources
- structured databases
- unstructured text
- tree structured data
- structured and unstructured data
- linked data
- graph structures
- metadata
- keyword queries
- text classification
- text mining
- data analysis
- genetic algorithm
- databases